# Run Roly vs Underwater King Crab Simulator

The clearest difference is update cadence: Underwater King Crab Simulator at every 19 months against Run Roly's every 39 months. Underwater King Crab Simulator also leads on device support. On price, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Run Roly ships an update every 39 months, Underwater King Crab Simulator every 19 months. The most recent releases landed on October 27, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Run Roly | Underwater King Crab Simulator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (2 ratings)](https://appshunter.io/ios/app/underwater-king-crab-simulator/id6443466049/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | — | Yes |
| Update frequency | Every 39 months | **Every 19 months** |
| Monetization | — | Ad-supported |
| Size | 27 MB | 100 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Scott Harrison](https://appshunter.io/developer/1278651680) | [Muneeb Faisal](https://appshunter.io/developer/1629898945) |

## What reviewers say

### Run Roly

[App page](https://appshunter.io/ios/app/run-roly/id1671387634)

**In-app purchases:** none


### Underwater King Crab Simulator

[App page](https://appshunter.io/ios/app/underwater-king-crab-simulator/id6443466049)

Engage in underwater combat and survival as a king crab. Hunt fish, battle dinosaurs and sharks, and explore various game modes in a 3D aquatic world. Upgrade your weapons and abilities to dominate the sea.

**Highlights:** King crab simulation, Underwater combat, Multiple game modes (survival, story, time), Hunt fish, dinosaurs, and sharks, Weapon and ability upgrades, 3D aquatic environment

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Run Roly free?

Run Roly is free to download, with no in-app purchases.

### Is Underwater King Crab Simulator free?

Underwater King Crab Simulator is free to download, with no in-app purchases.

### Which is updated more often, Run Roly or Underwater King Crab Simulator?

Run Roly ships an update every 39 months, and Underwater King Crab Simulator every 19 months. Most recently, Run Roly was updated on October 27, 2026 and Underwater King Crab Simulator on November 5, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*